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Books Books 1 - 10 of 20 on An oblique equator is a great circle the plane of which is perpendicular to the axis....  
" An oblique equator is a great circle the plane of which is perpendicular to the axis of an oblique projection. "
Elements of trigonometry, plane and spherical: adapted to the present state ... - Page 83
by Charles William Hackley - 1838 - 307 pages
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Geographical Compilation for the Use of Schools: Being an Accurate ..., Volume 1

Geography - 1806
...four lefs, viz : the two Tropics, and two Polar circles. Q. What is the Equator ? A. The Equator is a great circle, the plane of which is perpendicular to the axis of the world, and which divides the Sphere into two equal parts or Htmiffhere!, called Northern and Southern...
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Mechanics, hydrostatics, pneumatics, optics

Ireland commissioners of nat. educ - History - 1861
...A or B, fig. 76, works in what is called the nut or hollow screw. 243. Since the power describes a circle, the plane of which is perpendicular to the axis of the cylinder, it acts in a direction parallel to the bases of the inclined planes, of which the screw consists....
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The popular encyclopedia; or, 'Conversations Lexicon': [ed. by A. Whitelaw ...

Popular encyclopedia - 1874
...seconds. EQUATOR By the celestial equator is understood that imaginary great circle in the heavens, the plane of which is perpendicular to the axis of the earth; it is everywhere 00" distant from the celestial l>oles, which coincide with the extremities of the...
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Elements of Astronomy

Sir Robert Stawell Ball - Astronomy - 1880 - 459 pages
...construction as that already described. Attached to the axis, near each of the pivots, is a graduated circle, the plane of which is perpendicular to the axis of the pivots. One of these circles is shown in the figure. These circles are fixed to the axis, so that they...
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The Imperial Dictionary of the English Language: A Complete ..., Volume 2

John Ogilvie - Encyclopedias and dictionaries - 1883
...from L. crquo. cequatum, to make equal.) 1. In outran, thai Imaginary great circle in the heavens, the plane of which is perpendicular to the axis of the earth. It is everywhere 90° distant from the celestial poles, which coincide with the extremities of the...
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The National standard encyclopedia: A dictionary of literature, the sciences ...

Language Arts & Disciplines - 1884 - 698 pages
...the motions of the planets. Equator, -kwa'ter. In Astron. that imaginary great circle in the heavens, the plane of which is perpendicular to the axis of the earth. It is everywhere 90° distant from tho celestial poles. Equatorial, -kwa-tó-'ri-al. An astronomical...
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A Short History of Astronomy

Arthur Berry - Astronomy - 1899 - 440 pages
...FGH 1 in each of its positions represents the equator of the earth, ie a great circle on the earth the plane of which is perpendicular to the axis of the earth and is consequently always parallel to the celestial equator. This circle is not in the plane of the...
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XX Century Cyclopaedia and Atlas: Biography, History, Art, Science ..., Volume 3

Ainsworth Rand Spofford, Charles Annandale - Encyclopedias and dictionaries - 1901
...corresponding celestial equator in the plane of the terrestrial, an imaginary great circle in the heavens the plane of which is perpendicular to the axis of the earth. It is everywhere 90' distant from the celestial poles, which coincide with the extremities of the earth's...
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Winston's Cumulative Loose-leaf Encyclopedia: A Comprehensive ..., Volume 4

Thomas Edward Finegan - Encyclopedias and dictionaries - 1922
...Equinox . ing celestial equator in the plane of the terrestrial, an imaginary great circle in the heavens the plane of which is perpendicular to the axis of the earth. It is everywhere 90° distant from the celestial poles, which coincide with the extremities of the...
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